clear
u=[
0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	
0.000000	0.357086	0.577777	0.577777	0.357086	0.000000
0.000000	0.577777	0.934862	0.934862	0.577777	0.000000
0.000000	0.577777	0.934862	0.934862	0.577777	0.000000
0.000000	0.357086	0.577777	0.577777	0.357086	0.000000
0.000000	0.000000	0.000000	0.000000	0.000000	0.000000	
];
x=linspace(0.000000,3.141593,6);
y=linspace(0.000000,3.141593,6);
[X Y]=meshgrid(x,y);
surf(X,Y,u);
